first commit

utils/fgqcanvas/WindowData.cpp

@@ -0,0 +1,86 @@
+#include "WindowData.h"
+
+#include <QScreen>
+#include <QGuiApplication>
+#include <QDebug>
+
+#include "jsonutils.h"
+
+WindowData::WindowData(QObject *parent) : QObject(parent)
+{
+
+}
+
+QJsonObject WindowData::saveState() const
+{
+    QJsonObject json;
+    json["rect"] = rectToJsonArray(m_windowRect);
+    if (!m_screenName.isEmpty()) {
+        json["screen"] = m_screenName;
+    }
+    if (!m_title.isEmpty()) {
+        json["title"] = m_title;
+    }
+    // support frameless option here?
+    json["state"] = static_cast<int>(m_state);
+    return json;
+}
+
+bool WindowData::restoreState(QJsonObject state)
+{
+    m_windowRect = jsonArrayToRect(state.value("rect").toArray());
+    emit windowRectChanged(m_windowRect);
+
+    if (state.contains("screen")) {
+        m_screenName = state.value("screen").toString();
+    } else {
+        m_screenName.clear();
+    }
+
+    if (state.contains("title")) {
+        m_title = state.value("title").toString();
+    }
+
+    if (state.contains("state")) {
+        m_state = static_cast<Qt::WindowState>(state.value("state").toInt());
+    }
+
+    return true;
+}
+
+QRect WindowData::windowRect() const
+{
+    return m_windowRect;
+}
+
+QScreen *WindowData::screen() const
+{
+    if (m_screenName.isEmpty())
+        return nullptr;
+
+    QStringList screenNames;
+    Q_FOREACH(auto s, qApp->screens()) {
+        if (s->name() == m_screenName) {
+            return s;
+        }
+        screenNames.append(s->name());
+    }
+
+    qWarning() << "couldn't find a screen with name:" << m_screenName;
+    qWarning() << "Available screens:" << screenNames.join(", ");
+    return nullptr;
+}
+
+void WindowData::setWindowState(Qt::WindowState ws)
+{
+    m_state = ws;
+}
+
+void WindowData::setWindowRect(QRect windowRect)
+{
+    if (m_windowRect == windowRect)
+        return;
+
+    m_windowRect = windowRect;
+    emit windowRectChanged(m_windowRect);
+}